You missed part of my explanation, congress may well be controlled by sycophants. Basically anyone not pro Trump is gone from the House GOP.
As to the courts, to paraphrase Stalin, how many divisions does the Supreme Court have? We see this in Ohio, the governor and legislature flat out ignore court rulings. Read below, the Ohio Supreme Court refused to find the commission in contempt because it would trigger a constitutional crisis
Ohio's current congressional district maps, which the state Supreme Court has ruled are unconstitutionally gerrymandered for the GOP (Ohio Redistricting Commis
www.google.com
Again, I think the odds are quite low. But a willing Congress and an EB filled with sycophants will raise a question, how many divisions do the courts have? I do not know any provision that would allow the military to step in and stop a rogue president. They may not help the president, but I know of no provision allowing the Supreme Court to activate them to arrest a president.
Plus, I bet there are military men willing to accept promotions that are enamored by Trump.
If, and again I don't know it is true, if Trump really plans his retribution tour, he would also start putting sycophants into the courts.
We really shouldn't elect people who claim they want to ignore all law and precedent. They may well just be braggadocios gasbags as I suspect Trump is. But you nor I can PROVE that is all Trump is. If we do, and elect a totally sympathetic House, the number of guardrails left are very few.